Casio LK70S Troubleshooting, Action, Problem, See page, Possible Cause

Troubleshooting

Problem	Possible Cause	Action				See page
No keyboard sound	(1) Power supply problem.	(1) Correctly	attach	the	AC	Pages
		adaptor,	make	sure	that	E-14,15
		batteries poles (+/–) are facing
		correctly, and check to make
		sure that batteries are not dead.
	(2) Power is not turned on.	(2) Adjust the POWER/MODE				Page E-17
		switch to turn on power.
	(3) Volume setting is too low.	(3) Use the MAIN VOL. slider to				Page E-17
		increase volume.
	(4) The POWER/MODE switch is	(4) Normal play is not possible on				Page E-29
	in the CASIO CHORD or	the accompaniment keyboard
	FINGERED position.	while the	POWER/MODE
		switch is set to CASIO CHORD
		or FINGERED. Change the
		POWER/MODE switch setting
		to NORMAL.
	(5) LOCAL CONTROL is off.	(5) Turn on LOCAL CONTROL.				Page E-37
Any of the following symptoms	Low battery power	Replace the batteries with a set of				Pages
while using battery power.		new ones or use the AC adaptor.				E-14, 15

•Dim power supply indicator

•Instrument does not turn on

•Dim, difficult to read display

•Abnormally low speaker/headphone volume

•Distortion of sound output

•Occasional interruption of sound when playing at high volumes

•Sudden power failure when playing at high volumes

•Dimming of the display when playing at high volume

•Continued sound output even after you release a key

•A totally different tone may sound

•Abnormal rhythm pattern and demo tune play

•Abnormally low microphone volume

•Distortion of microphone input

•Dim power supply indicator when a microphone is used

•Sudden power failure when using the microphone

•Dimming of keyboard lights when notes sound

•Loss of power, sound distortion, or low volume when playing from a connected computer

Auto Accompaniment does not	Accompaniment volume is set to	Use the FUNCTION button to	Page E-33
sound.	00.	increase the volume.
Key light stays on.	Keyboard is waiting for play of	• Press the lit key to continue with	Page E-23
	the correct note during Step 1 or	Step 1 or Step 2 play.
	Step 2 play.	• Press the START/STOP button	Page E-23
		to quit Step 1 or Step 2 play.
Keys are lit though no sound is	Power on alert is reminding you	Press any button or keyboard key	Page E-15
being produced.	that power was left on without	to restore power to normal.
	any operation being performed.

653A-E-047B		E-45
LK70S_e_45-47.p65	45	04.8.18, 11:04 AM